chore: Add iconAriaLabel property to BaseOption interface

[johannes-weber]

Description

Related links, issue #, if available: n/a

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[portia-o]

🚀

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.62%. Comparing base (5687992) to head (d42fbae). Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3420   +/-   ##
=======================================
  Coverage   96.62%   96.62%           
=======================================
  Files         817      817           
  Lines       23800    23800           
  Branches     7919     7919           
=======================================
  Hits        22996    22996           
  Misses        797      797           
  Partials        7        7           

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